<template>
  <div class="total-header">
    <div class="header">
      <el-container>
        <el-header height="80px" class="header-cont">
          <el-row>
            <el-col class="logo" :span="3">
              <a href="/">
                <img src="@/assets/head-logo.svg" alt="">

              </a>
            </el-col>
            <el-col class="nav" :span="10">
              <el-row>
                <el-col :span="4" v-for="(top_nav, index) in  nav_top_list" :key="top_nav.id">
                  <router-link :to="top_nav.link"  v-if="!top_nav.is_site">{{top_nav.title}}</router-link>
                  <a :href="top_nav.link" target="_blank" v-else>{{top_nav.title}}</a>
                </el-col>
              </el-row>

            </el-col>
            <el-col :span="11" class="header-right-box">
              <div class="search">
                <input type="text" id="Input" placeholder="请输入想搜索的课程" style="" @blur="inputShowHandler" ref="Input"
                       v-show="!s_status">
                <ul @click="ulShowHandler" v-show="s_status" class="search-ul">
                  <span>Python</span>
                  <span>Linux</span>
                </ul>
                <p>
                  <img class="icon" src="@/assets/sousuo1.png" alt="" v-show="s_status">
                  <img class="icon" src="@/assets/sousuo2.png" alt="" v-show="!s_status">
                  <img class="new" src="@/assets/new.png" alt="">
                </p>
              </div>
              <div class="register" v-show="!token">
                <router-link to="/login">
                  <button class="signin">登录</button>
                </router-link>
                &nbsp;&nbsp;|&nbsp;&nbsp;
                <a target="_blank" href="https://www.luffycity.com/signup">
                  <router-link to="/register">
                    <button class="signup">注册</button>
                  </router-link>

                </a>
              </div>
              <div class="shop-car" v-show="token">
                <router-link to="/cart/">
                  <b>{{$store.state.cart.cart_length}}</b>
                  <img src="@/assets/shopcart.png" alt="">
                  <span>购物车 </span>
                </router-link>
              </div>
              <div class="nav-right-box" v-show="token">
                <div class="nav-right">
                  <router-link to="/myclass">
                    <div class="nav-study">我的教室</div>
                  </router-link>
                  <div class="nav-img" @mouseover="personInfoList" @mouseout="personInfoOut">
                    <img src="@/assets/touxiang.png" alt="" style="border: 1px solid rgb(243, 243, 243);">
                    <ul class="home-my-account" v-show="list_status" @mouseover="personInfoList">
                      <li>
                        我的账户
                        <img src="@/assets/back.svg" alt="">
                      </li>
                      <li>
                        <router-link to="/order/">
                          我的订单
                          <img src="@/assets/back.svg" alt="">
                        </router-link>
                      </li>
                      <li>
                        贝里小卖铺
                        <img src="@/assets/back.svg" alt="">
                      </li>
                      <li>
                        我的优惠券
                        <img src="@/assets/back.svg" alt="">
                      </li>
                      <li>
                    <span>
                      我的消息
                      <b>(26)</b>
                    </span>
                        <img src="@/assets/back.svg" alt="">
                      </li>
                      <li @click="logout">
                        退出
                        <img src="@/assets/back.svg" alt="">
                      </li>

                    </ul>
                  </div>

                </div>

              </div>


            </el-col>
          </el-row>

        </el-header>


      </el-container>

    </div>
  </div>

</template>

<script>
export default {
  name: "Header",
  data() {
    return {
      // 设置一个登录状态的标记，因为登录注册部分在登录之后会发生变化
      token: false,  //  false  -- not login     true -- login
      s_status: true, // 控制放大镜颜色切换
      list_status: false, // 控制个人中心下拉菜单是否显示
      nav_top_list:[],
      where:0,
    }
  },
  // props:['xx',],
  methods: {
    logout(){
      sessionStorage.removeItem('token');
      sessionStorage.removeItem('user_id');
      sessionStorage.removeItem('username');
      localStorage.removeItem("token");
      localStorage.removeItem("user_id");
      localStorage.removeItem("username");
      this.token = false;
    },
    checklogin(){
      if (localStorage.token){
        this.token = localStorage.token
        this.where = 1;
      }
      else if (sessionStorage.token){
        this.token = sessionStorage.token
        this.where = 0;
      }else {
        return false;
      }
      // this.token = localStorage.token || sessionStorage.token;
      this.$axios.post(`${this.$settings.host}/users/verify_token/`,{
        token:this.token,
      })
      .then((res)=>{
        if (this.where === 0){
          sessionStorage.token = res.data.token;
        }else {
          localStorage.token = res.data.token;
        }
      })
      .catch((error)=>{
        this.$confirm('请重新登录', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(() => {
          this.$router.push('/login');
        }).catch(()=>{
          this.token = false;
        })
      })
    },
    ulShowHandler() {
      this.s_status = false;
      // console.log(this.$refs.Input);

      // this.$refs.Input.focus();
      this.$nextTick(() => {  //延迟回调方法，Vue中DOM更新是异步的,也就是说让Vue去显示我们的input标签的操作是异步的，如果我们直接执行this.$refs.Input.focus();是不行的，因为异步的去显示input标签的操作可能还没有完成，所有我们需要等它完成之后在进行DOM的操作，需要借助延迟回调对DOM进行操作，这是等这次操作对应的所有Vue中DOM的更新完成之后，在进行nextTick的操作。
        this.$refs.Input.focus();
      })

    },
    inputShowHandler() {
      // console.log('xxxxx')

      this.s_status = true;
    },
    personInfoList() {
      this.list_status = true;
    },
    personInfoOut() {
      this.list_status = false;
    },
    get_nav_data(){
      this.$axios.get(`${this.$settings.host}/home/nav/top`)
      .then((res)=>{
        this.nav_top_list = res.data;
      })
      .catch((error)=>{
      })
    },
  },
  created(){
    this.get_nav_data();
    this.checklogin();
    let cart_length = sessionStorage.cart_length;
    this.$store.commit('add_cart', cart_length);
  }
}


</script>

<style scoped>
.header-cont .nav .active {
  color: #f5a623;
  font-weight: 500;
  border-bottom: 2px solid #f5a623;
}

.total-header {
  min-width: 1200px;
  z-index: 100;
  box-shadow: 0 4px 8px 0 hsla(0, 0%, 59%, .1);
}

.header {
  width: 1200px;
  margin: 0 auto;
}

.header .el-header {
  padding: 0;
}

.logo {
  height: 80px;
  /*line-height: 80px;*/
  /*text-align: center;*/
  display: flex; /* css3里面的弹性布局，高度设定好之后，设置这个属性就能让里面的内容居中 */
  align-items: center;
}

.nav .el-row .el-col {
  height: 80px;
  line-height: 80px;
  text-align: center;

}

.nav a {
  font-size: 15px;
  font-weight: 400;
  cursor: pointer;
  color: #4a4a4a;
  text-decoration: none;
}

.nav .el-row .el-col a:hover {
  border-bottom: 2px solid #f5a623
}

.header-cont {
  position: relative;
}

.search input {
  width: 185px;
  height: 26px;
  font-size: 14px;
  color: #4a4a4a;
  border: none;
  border-bottom: 1px solid #ffc210;

  outline: none;
}

.search ul {
  width: 185px;
  height: 26px;
  display: flex;
  align-items: center;
  padding: 0;

  padding-bottom: 3px;
  border-bottom: 1px solid hsla(0, 0%, 59%, .25);
  cursor: text;
  margin: 0;
  font-family: Helvetica Neue, Helvetica, Microsoft YaHei, Arial, sans-serif;
}

.search .search-ul, .search #Input {
  padding-top: 10px;
}

.search ul span {
  color: #545c63;
  font-size: 12px;
  padding: 3px 12px;
  background: #eeeeef;
  cursor: pointer;
  margin-right: 3px;
  border-radius: 11px;
}

.hide {
  display: none;
}

.search {
  height: auto;
  display: flex;
}

.search p {
  position: relative;
  margin-right: 20px;
  margin-left: 4px;
}

.search p .icon {
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.search p .new {
  width: 18px;
  height: 10px;
  position: absolute;
  left: 15px;
  top: 0;
}

.register {
  height: 36px;
  display: flex;
  align-items: center;
  line-height: 36px;
}

.register .signin, .register .signup {
  font-size: 14px;
  color: #5e5e5e;
  white-space: nowrap;
}

.register button {
  outline: none;
  cursor: pointer;
  border: none;
  background: transparent;
}

.register a {
  color: #000;
  outline: none;
}

.header-right-box {
  height: 100%;
  display: flex;
  align-items: center;
  font-size: 15px;
  color: #4a4a4a;
  position: absolute;
  right: 0;
  top: 0;
}

.shop-car {
  width: 99px;
  height: 28px;
  border-radius: 15px;
  margin-right: 20px;
  background: #f7f7f7;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
}

.shop-car b {
  position: absolute;
  left: 28px;
  top: -1px;
  width: 18px;
  height: 16px;
  color: #fff;
  font-size: 12px;
  font-weight: 350;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  background: #ff0826;
  overflow: hidden;
  transform: scale(.8);
}

.shop-car img {
  width: 20px;
  height: 20px;
  margin-right: 7px;
}

.nav-right-box {
  position: relative;
}

.nav-right-box .nav-right {
  float: right;
  display: flex;
  height: 100%;
  line-height: 60px;
  position: relative;
}

.nav-right .nav-study {
  font-size: 15px;
  font-weight: 300;
  color: #5e5e5e;
  margin-right: 20px;
  cursor: pointer;

}

.nav-right .nav-study:hover {
  color: #000;
}

.nav-img img {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  display: inline-block;
  cursor: pointer;
}

.home-my-account {
  position: absolute;
  right: 0;
  top: 60px;
  z-index: 101;
  width: 190px;
  height: auto;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 4px 8px 0 #d0d0d0;
}

li {
  list-style: none;
}

.home-my-account li {
  height: 40px;
  font-size: 14px;
  font-weight: 300;
  color: #5e5e5e;
  padding-left: 20px;
  padding-right: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-sizing: border-box;
}

.home-my-account li img {
  cursor: pointer;
  width: 5px;
  height: 10px;
}

.home-my-account li span {
  height: 40px;
  display: flex;
  align-items: center;
}

.home-my-account li span b {
  font-weight: 300;
  margin-top: -2px;
}


</style>

